20110211011 has 12 divisors (see below), whose sum is σ = 22332507736. Its totient is φ = 18093525120.

The previous prime is 20110210999. The next prime is 20110211053. The reversal of 20110211011 is 11011201102.

It is not a de Polignac number, because 20110211011 - 2¹⁷ = 20110079939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110211311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 844965 + ... + 868438.

Almost surely, 2^20110211011 is an apocalyptic number.

20110211011 is a deficient number, since it is larger than the sum of its proper divisors (2222296725).

20110211011 is a wasteful number, since it uses less digits than its factorization.

20110211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713522 (or 1713511 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20110211011 its reverse (11011201102), we get a palindrome (31121412113).

Subtracting from 20110211011 its reverse (11011201102), we obtain a palindrome (9099009909).

It can be divided in two parts, 201102 and 11011, that multiplied together give a palindrome (2214334122).

The spelling of 20110211011 in words is "twenty billion, one hundred ten million, two hundred eleven thousand, eleven".